Picking the right material matters as much as the design. The same part can be perfect in one plastic and crack, sag or bend in another. Here's how the three most popular 3D printing materials compare, and how to choose in about 30 seconds.
The 30-second answer
- Display piece, model, gift or prototype? PLA.
- Functional part, outdoor use, or something that gets warm? PETG.
- Needs to bend, grip or absorb impacts? TPU.
At a glance
| PLA | PETG | TPU | |
|---|---|---|---|
| Stiffness | Very stiff | Stiff, a little give | Flexible, rubbery |
| Toughness | Can snap | Tough, bends before breaking | Very tough |
| Heat | Softens around 55°C | Around 75°C | Around 60 to 80°C |
| Outdoors / UV | Poor | Good | Fair |
| Detail and finish | Excellent | Good, slightly glossy | Fair, matte |
| Price | $ | $$ | $$$ |
PLA: the everyday choice
PLA is the most popular 3D printing material for good reason. It prints crisp detail, comes in the widest range of colors and is the most affordable. It's stiff and strong for its weight, but it can snap rather than bend, and it softens in heat. A PLA part left on a car dashboard in summer can warp.
Great for: figures and models, cosplay pieces, desk organizers, planters for indoors, gifts, signs and prototypes.
PETG: tough and practical
PETG is the plastic family used in drink bottles. It's tougher than PLA, flexes a little before it breaks, handles more heat and stands up better outdoors. It's a little glossier and the fine detail is slightly softer.
Great for: brackets and mounts, enclosures, tool holders, garden and outdoor parts, car accessories, and anything that gets handled a lot.
TPU: flexible and grippy
TPU is a rubber-like plastic. It bends, squishes and springs back, and it's very hard to break. It prints slowly, which is why it costs more per part.
Great for: phone and device cases, bumpers, grips, gaskets and seals, feet for furniture and equipment, and wearables.
When you need something stronger
For parts that face high heat, sunlight, friction or heavy loads, we also print ABS, ASA, nylon and carbon fiber blends. ASA is the go-to for parts that live outside, nylon for gears and hinges, and carbon fiber blends for stiff, light jigs and fixtures. Request a quote for these.
How material affects price
PLA is the cheapest, PETG costs a little more, and TPU costs the most because it prints slowly. Our instant price calculator lets you switch between PLA, PETG and TPU and see the price change for your exact part. For a full breakdown, read how much 3D printing costs.
Still not sure?
Tell us what the part has to do: where it lives, what it holds and whether it gets hot or bent. Add it in the notes when you order, or send us a message, and we'll recommend the right material.